Military ranks of the Thai armed forces

The Royal Thai Army (RTA) (กองทัพบกไทย, RTGS Kong Thap Bok Thai, IPA: [kɔːŋ tháp bòk thaj]) is the land-based part of the Thai military.

Private 1st class is a rank assigned to conscripts after they have finished specialist training. They wear the same insignia as a lance corporal, who is a member who has completed his conscription obligation, and who has undertaken training at NCO school.

The Royal Thai Navy (RTN) (กองทัพเรือไทย, RTGS Kong Thap Ruea Thai, IPA: [kɔːŋ tháp rɨːa thaj]) is the sea-based part of the Thai military. The Royal Thai Marine Corps is part of the RTN, and uses the same rank structure. Depending on the uniform, the rank insignia can be located on the shoulder (on white and khaki uniforms) or on the sleeves (on dark blue uniforms).

Naval officers will additionally add the post-nominal ร.น. as an abbreviation for ราชนาวี (râat-chá-naa-wee, literally "the Royal Navy").

The Royal Thai Air Force (RTAF) (กองทัพอากาศไทย, RTGS Kong Thap Akat Thai, IPA: [kɔːŋ tháp ʔaːkàːt thaj]) is the air based part of the Thai military. The rank system is modelled after that of the British Royal Air Force (RAF), but unlike the RAF, officers' cuff rank insignia are topped by a star above the lace stripes and all air marshals' rank insignia are also determined by one to five stars on the shoulder board.

The Royal Thai Police (RTP) (ตำรวจไทย) is sometimes considered as the fourth armed force of Thailand (๔ เหล่าทัพ). The Royal Thai Police uses the same rank systems as the Royal Thai Army but the particularities of the police are the star representing the commissioned officer and the crown over the star. The Royal Thai Police uses the eight-pointed silver star and the silver crown with a halo on top. The Royal Thai Army uses the five-pointed gold star and the gold crown with no halo.

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